Social Influence on Travel Behavior: A Simulation Example of the Decision to Telecommute

This paper addresses inter-agent interactions, an issue that has received little attention in travel behavior research. Drawing upon the economic theory of externalities and the sociological paradigm of social networks, we develop a discrete choice model that incorporates elements of social influence in addition to more conventional factors such as the attributes of alternatives and the characteristics of decision makers. Using simulation, we apply the model to the case of telecommuting – that is, the decision to telecommute or not – over two waves. The findings suggest that some marginal adopters of telecommuting are influenced heavily in the second wave by the decisions of others in the first wave. Furthermore, the evidence illustrates the importance of social influence on new adopters of telecommuting in the second wave.